Blank-operated mechanism



H. J. GOSS BLANK OPERATED MECHANI SM Sept. 8, 1925. 1,552,554

Filed Jan. 31 1924 INVENTOR ATTORNEY Patented Sept. 8, 1925.

UNITED STATES v1,552,554 PATENT, OFFICE.

HAROLD GOSS, OF NASHUA, NEW HAMPSHIRE, ASSIG'NOR TO ELIE W. L ABOM-BABDE, OF NASHUA, NEW HAMPSHIRE.

BLANK-OPERATED MECHANISM.

Application filed January 31, 1924. Serial No. 689,636.

To all whom it may concern:

Be it known that I, I-Lmonn J. Goss, a citizen of the United States, andresident of Nashua, in the county of Hillsborough and State of NewHampshire, have invented a new and useful Blank-Operated Mechanism, ofwhich the following is a specification.

The principal object of my invention is to improve the operation ofmachines oper ating on blanks and especially on very thin blanks such asthose used in making envelopes.

The principal feature of my invention consists in providing mechanismoperated by the passage of a blank which mechamsm operates to affect theblank after such passage.

A particular feature is a trip mechanism operated b a passing'blank torelease for action mec anism to bring a glue roll into subsequentcooperative engagement with said blank.

Another feature is particular cam mechanism for controlling said action.25

Other features will be pointed out below. 7

In the drawing Figure 1 1s a plan of a portion of a blank.

feeding and gluing machine embodying my Figure 2 is an elevation of thesame; and

Figure 3 is an enlarged elevation of the cam mechanism described below;and

Figure 4 is a plan of the cam.

I illustrate my invention as embodied in an envelope making machine inwhich A. A represent side bars of any suitable 'frame and connected withthem are brackets A and A. Rock shaft B is journalled in these bracketsand has fixed connection with trip member 6 near the center of themachine, said member 6 being preferably curved near its end for apurpose described below. Fixed to one end of said shaft is hook I)normally engaging beneath pin b fixed to arm D which is fixed to shaftD, the latter being journalled in said side bars. Fixed to shaft D isarm D carryin roller D and also arm 1) carrying roller Spring E may haveone end suitably fixed to the frame of the machine and the other end isconnected to arm D and tends normally to draw arm D downward andconsequently raise rollers D and D. Arm D has a pror periphery of cammember F, the latter haV-' ing fixed connection with shaft F. which issuitably mounted on the frame. Fixed also to said shaft is pinion F?driven by pinion F through chain F pinion F bemg driven in any suitableway, as by pinion F 7 The blanks, such as G and G, are fed bycooperating upper belt H and lower belt H which may be actuated in, anysuitable way. presser rolls H may be used if desired.

Glue roll K is suitably mounted directly above roller D and has on itsperiphery glue which may be received from'any suitable glue receptacle.ably mounted directly above roller D.

'In operation envelope blank G-is fed ,by

the\belts and H-- and its forward edge engages member I; which isinclined 'for- Upper presser rolls H and lower Glue roll K is suitwardand curved slightly upward so that it will never permanently block thefeed of the blank. Blank G then pushes member I engagement with pin 12 wereupon spring E acts to pull down arm D and consequently raises rolls Dand D to press the flaps such as g and 9 rolls K and K which thereupondeposit" glue on the top surfaces of said flaps}. Arm D may be loweredbecause just after the hook I) releases the pin 7) the roller D may moveinto the depressed portion f of the cam surface where it rides until thepartially folded blank G has about reached the position occupied bypartially folded blank G and then roller D rides up ontocam surface fwhich brings pin 6 up, into normal position so that as blank G passesbeyond member 6 the latter, under the influence of gravity, will dropdown and swing hook I) under pin b where the hook gemsgins until th nextblank moves mem- It may be desired to vary the length of time duringwhich the rolls D and D will be raised to accommodate, for example,blanks of different sizes and for this-purpose I provide an adjustablecage L which is loosely mounted on'ithe cam shaft, its outer edge beingflush with the portion f of the periphery of the cam. The cage may beswung to expose the desired amount of depressed portion 7 and I providea set firmly against the '6 without striking the latter.

of sockets f in theicam; the desired'two of which receive ins 7 whichengage the ends of slot L to old the cage in the desired position.

When the portion f of cam F is in contact with the roll D, the arm D isheld in a position such that the pin 6 is raised slightly from the hookI) to allow the strain of spring E to be removed from the hook I). Thisallows the hook I) to swing freely, as the friction between hook andpin 1) is removed. Therefore during the period of time in which the rollI) is in contact with portion f, the finger b and hook'b" are free to beactuated by the passage of a blank. The passage of a blank raises thefinger b sufficiently to disengage the hook b from pin 6 thus allowingthe roll D to drop. into the depression f on the cam after the portion fhas passed by the roll due to rotation of the cam. During the entirecontact of roll D with portion f, the sin b is held just a little abovenormal an consequently the hook may swing under pin by a moving blank; ahook having fixed connection with said member; means to act upon saidblank after the latter has swung said member and including a pin tointerlock with said hook. 3. A machine for applying glue to blankcomprising a glue applying roll; a presser roll to cooperate with saidglue roll; means to move said presser roll into such cooperativeposition; and means to hold the firstmentioned means against movementbut actuated by a blank to release the firstmentioned means formovement.

4. Mechanism of the character described comprising a hook; a membermounted to be swung into position to act upon the blanks; an arm toswing the last-mentioned member, said arm having a pin to interlock withsaid hook and having a roller; a member having fixed connection'withsaidhook and actuated by passing blanks to release said hook from saidin; a cam to cooperate with said roller; and arm and thereby swing thefirst-mentioned member into acting position when the hook and pin areunlocked.

5. Mechanism of the character described comprising a movable hook; apin; a cam having a periphery operative to move" said pin into positionfor engagement with said hook and having a portion projecting from saidperiphery operative to move said pin in a direction along the shankofrsaid hook just prior tosaid engagement. V

moan J. eoss.

a spring to move said-

